/Engine/Plugins/FX/Niagara/Source/NiagaraEditor/Public/ViewModels/NiagaraParameterDefinitionsPanelViewModel.h
Find all external parameters with name matches to the definitions and set them to synchronize with all eligible definitions.
virtual void SubscribeAllParametersToDefinitions ( const [FNiagaraParameterDefinitionsPanelCategory](API\Plugins\NiagaraEditor\FNiagaraParameterDefinitionsPane-) & CategoryToSubscribe ) const